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LTC6945 데이터시트(PDF) 7 Page - Linear Technology

부품명 LTC6945
상세설명  16-Bit, 20Msps Low Noise Dual ADC
PDF  36 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LTC6945 데이터시트(HTML) 7 Page - Linear Technology

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7
2270f
LTC2270
POWER REQUIREMENTS The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 9)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CMOS Output Modes: Full Data Rate and Double Data Rate
VDD
Analog Supply Voltage
(Note 10)
l
1.7
1.8
1.9
V
OVDD
Output Supply Voltage
(Note 10)
l
1.1
1.8
1.9
V
IVDD
Analog Supply Current
DC Input
Sine Wave Input
l
89
89.5
100
mA
mA
IOVDD
Digital Supply Current
Sine Wave Input, OVDD = 1.2V
2
mA
PDISS
Power Dissipation
DC Input
Sine Wave Input, OVDD = 1.2V
l
160
164
180
mW
mW
LVDS Output Mode
VDD
Analog Supply Voltage
(Note 10)
l
1.7
1.8
1.9
V
OVDD
Output Supply Voltage
(Note 10)
l
1.7
1.8
1.9
V
IVDD
Analog Supply Current
Sine Input, 1.75mA Mode
Sine Input, 3.5mA Mode
l
91
93
105
mA
mA
IOVDD
Digital Supply Current
(0VDD = 1.8V)
Sine Input, 1.75mA Mode
Sine Input, 3.5mA Mode
l
38
73
82
mA
mA
PDISS
Power Dissipation
Sine Input, 1.75mA Mode
Sine Input, 3.5mA Mode
l
232
299
337
mW
mW
All Output Modes
PSLEEP
Sleep Mode Power
0.5
mW
PNAP
Nap Mode Power
12
mW
PDIFFCLK Power Increase with Differential Encode Mode Enabled
(No increase for Nap or Sleep Modes)
20
mW
TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 5)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fS
Sampling Frequency
(Note 10)
l
1
20
MHz
tL
ENC Low Time (Note 8)
Duty Cycle Stabilizer Off
Duty Cycle Stabilizer On
l
l
23.5
2
25
25
500
500
ns
ns
tH
ENC High Time (Note 8)
Duty Cycle Stabilizer Off
Duty Cycle Stabilizer On
l
l
23.5
2
25
25
500
500
ns
ns
tAP
Sample-and-Hold Acquisition Delay Time
0
ns
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Digital Data Outputs (CMOS Modes: Full Data Rate and Double Data Rate)
tD
ENC to Data Delay
CL = 5pF (Note 8)
l
1.1
1.7
3.1
ns
tC
ENC to CLKOUT Delay
CL = 5pF (Note 8)
l
1
1.4
2.6
ns
tSKEW
DATA to CLKOUT Skew
tD – tC (Note 8)
l
0
0.3
0.6
ns
Pipeline Latency
Full Data Rate Mode
Double Data Rate Mode
6
6.5
6
6.5
Cycles
Cycles



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